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91. 发明授权

EP3178722B1 COLUMN UNIT FOR AN ELECTRIC POWER STEERING APPARATUS 有权
公开(公告)号：EP3178722B1
公开(公告)日：2019-04-24
申请号：EP16203025.8
申请日：2012-01-19
申请人： NSK Ltd.
发明人： Shibazaki, Hiroshi , Waga, Tamotsu , Sadakata, Kiyoshi , Moriyama, Seiichi
IPC分类号： B62D1/16 , B62D5/04 , B62D1/184

92. 发明授权

EP2945277B1 CONTROL DEVICE FOR MULTIPHASE MOTOR AND ELECTRICAL POWER STEERING DEVICE USING SAME 有权转让
公开(公告)号：EP2945277B1
公开(公告)日：2019-04-17
申请号：EP13882504.7
申请日：2013-10-11
申请人： NSK Ltd.
发明人： SUGAWARA Takayoshi , IMAMURA Yousuke , KUMAGAI Hiroyasu
IPC分类号： H02P6/10 , H02P6/06 , H02P6/16 , B62D5/04 , H02P23/14

93. 发明授权

EP3082232B1 ELECTRONIC CONTROL UNIT, ELECTRIC POWER STEERING DEVICE, AND VEHICLE 有权
公开(公告)号：EP3082232B1
公开(公告)日：2019-04-10
申请号：EP14869940.8
申请日：2014-12-12
申请人： NSK Ltd.
发明人： INADA, Yoshikatsu , TAGAMI, Kotaro , SEKINE, Takaaki
IPC分类号： H02K11/00 , B62D5/04 , H05K7/20 , H05K7/14

94. 发明授权

EP2623804B1 SHELL-TYPE RADIAL NEEDLE BEARING OUTER RING AND METHOD FOR MANUFACTURING SAME 有权
公开(公告)号：EP2623804B1
公开(公告)日：2019-04-10
申请号：EP11818967.9
申请日：2011-09-22
申请人： NSK Ltd.
发明人： HIGUCHI, Masato , TAKEO, Noriyuki , KOMURA Yoshiaki
IPC分类号： F16C33/58 , F16C19/46 , F16C33/64 , F16C21/00 , F16D3/38 , F16D3/41 , B21D53/10 , B24C1/10

95. 发明公开

EP3460988A1 ELECTRIC POWER STEERING DEVICE 有权
公开(公告)号：EP3460988A1
公开(公告)日：2019-03-27
申请号：EP17831076.9
申请日：2017-07-20
申请人： NSK LTD.
发明人： TAKASE Hiroaki , MINAKI Ryo , SAWADA Hideki , SUGAWARA Takayoshi
IPC分类号： H02P21/05 , B62D5/04 , B62D6/00 , H02M7/48 , H02P6/10
摘要： An object of the present invention is to provide an electric power steering apparatus that ideally compensates the dead time of the inverter without the tuning operation, improves the distortion of the current waveform and the responsibility of the current control, and suppresses the sound, the vibration, the ripple that the low speed steering maneuver is effective.
[Means for solving the problem]
The present invention is the electric power steering apparatus that converts dq-axes current command values calculated based on at least a steering torque into 3-phase duty command values, driving-controls a 3-phase brushless motor by an inverter of a PWM-control, and applies an assist torque to a steering system of a vehicle, wherein 3-phase detection voltages are estimated based on 3-phase motor terminal voltages, loss voltages due to a dead time of the inverter are estimated from differences between 3-phase correction command voltages calculated from the 3-phase duty command values and the 3-phase detection voltages, and a dead time compensation of the inverter is performed by feeding back dead time compensation values obtained by compensating the loss voltages to the dq-axes current command values. The compensation amount improving section may be provided.

96. 发明公开

EP3459822A1 CONTROL DEVICE FOR ELECTRIC POWER STEERING DEVICE 有权
公开(公告)号：EP3459822A1
公开(公告)日：2019-03-27
申请号：EP17843586.3
申请日：2017-08-22
申请人： NSK Ltd.
发明人： TSUBAKI, Takahiro , KAWADA, Hideaki
IPC分类号： B62D6/00 , B62D5/04
摘要： There is provided a control device for an electric power steering device, which determines an estimate of a steering angle without using an expensive angle sensor to realize highly accurate steering angle control using the determined estimate of the steering angle. A steering angle calculating section 201 acquires a motor rotation angle θs (i.e., motor angle θ) output from a rotation sensor and acquires a steering torque Tt output from a torque sensor in a steering angle control mode. The steering angle calculating section 201 determines an estimate θr of an actual steering angle using the acquired motor angle θ and steering torque Tt to realize highly accurate steering angle control using the determined estimate θr of the actual steering angle.

97. 发明授权

EP2913245B1 ELECTRIC POWER-STEERING DEVICE 有权
公开(公告)号：EP2913245B1
公开(公告)日：2019-03-27
申请号：EP13850639.9
申请日：2013-10-28
申请人： NSK Ltd.
发明人： ISHII, Tatsuya , YAMAMOTO, Takeshi , MORIYAMA, Seiichi
IPC分类号： B62D5/04

98. 发明授权

EP3257721B1 TELESCOPIC STEERING DEVICE 有权
公开(公告)号：EP3257721B1
公开(公告)日：2019-03-20
申请号：EP16796537.5
申请日：2016-05-18
申请人： NSK Ltd.
发明人： SUGISHITA, Suguru
IPC分类号： B62D1/184 , B62D1/187 , B62D1/185

99. 发明授权

EP3173313B1 ELECTRIC POWER STEERING DEVICE 有权
公开(公告)号：EP3173313B1
公开(公告)日：2019-03-20
申请号：EP15845128.6
申请日：2015-04-24
申请人： NSK Ltd.
发明人： SEGAWA, Toru
IPC分类号： B62D5/04 , F16H55/24 , F16H1/16

100. 发明授权

EP2952763B1 MULTIPOINT CONTACT BALL BEARING 有权
公开(公告)号：EP2952763B1
公开(公告)日：2019-03-20
申请号：EP14746675.9
申请日：2014-01-29
申请人： NSK Ltd.
发明人： KARIO, Atsushi , TSUCHIDA, Yuuki , TANAKA, Susumu
IPC分类号： F16C33/58 , F16C19/16 , F16C33/32 , F16C33/64

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